Yes, it will - which is ok if lowest common denominator is useful (ie at this stage of cloud providers, there is lots of innovation going on - surely it won't continue like this for ever !). 

So this turns deltacloud into a "discovery" API - is that the direction that deltacloud needs to go? At the moment it is an API that you can use to do something more or less directly. Introducing a discovery component means that to use this api, you need to discover capabilities, and then make a decision in your client code how to use/not use them (which is kind of pushing it up a layer to the clients) - doesn't that make it harder for people to write clients that can work across clouds?